Home / 75,129.02-103,676.10-41,137.12

Finding the Fourth Proportional to 75,129.02, 103,676.10 and 41,137.12

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Solution

The fourth proportional to 75,129.02, 103,676.10 and 41,137.12 is: 56,768.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,129.02 : 103,676.10 = 41,137.12 : x
  2. Step 2: Convert to fraction form
    75,129.02/103,676.10 = 41,137.12/x
  3. Step 3: Cross multiply
    75,129.02x = 103,676.10 × 41,137.12
  4. Step 4: Simplify right side
    75,129.02x = 4,264,935,790.38
  5. Step 5: Solve for x
    x = 4,264,935,790.38/75,129.02
  6. Step 6: Final answer
    x = 56,768.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.